<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>登录验证-非常重要</title>
	    <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
	<script>
		function checkUname(){
			//用户输入的
		username=$("#uname").val();
		 //验证规则
		 reg=/^[a-zA-Z0-9]{3,10}$/;
		 if(!reg.test(username)){
			 $("#uname").css("border-color","red");
		     return false;
		 }else{
			 $("#uname").css("border-color","");
			 return true;
			 }
		}
		function checkUpsw(){
			psw=$("#upsw").val();
			reg=/^[0-9]{6}$/;
			if(!reg.test(psw)){
				 $("#upsw").css("border-color","red");
			     return false;
			 }else{
				 $("#upsw").css("border-color","");
			 return true;
			}
		}
		function checkAll(){
			checkUname()&&checkUpsw();
		}
	</script>
	</head>
	<body>
		<h3>用户名是字母数字的组合，3-10个;密码六个数字</h3>
		用户名<input onblur="checkUname()" type="text" id="uname"/>
		密码<input onblur="checkUpsw()" type="password" id="upsw" />
		<button onclick="checkAll()">登录</button>
	</body>
</html>
